The persistent increase of CO_(2) levels in the atmosphere,already exceeding 400 ppm,urges the exploration of CO_(2) emission reduction and recycling technologies.Ideally,photocatalytic conversion of CO_(2) into valua...The persistent increase of CO_(2) levels in the atmosphere,already exceeding 400 ppm,urges the exploration of CO_(2) emission reduction and recycling technologies.Ideally,photocatalytic conversion of CO_(2) into valuable hydrocarbons realizes solar-to-chemical energy conversion,which is a desirable“kill two birds with one stone”strategy;namely,CO_(2) photoreduction can simultaneously tackle energy shortage and keep global carbon balance.Graphitic carbon nitride(g-C_(3)N_(4))working on CO_(2) reduction reaction deserves a highlight not only for the metal-free feature that endows it with low cost,tunable electronic structure,and easy fabrication properties but also because of its strong reduction ability.The present review concisely summarizes the latest advances of g-C_(3)N_(4)-based photocatalysts toward CO_(2) reduction.It starts with the discussion of thermodynamics and dynamics aspects of the CO_(2) reduction process.Then the modification strategies to promote g-C_(3)N_(4)-based photocatalysts in CO_(2) photoreduction have been discussed in detail,including surface functionalization,molecule structure engineering,crystallization,morphology engineering,loading cocatalyst,and constructing heterojunction.Meanwhile,the intrinsic factors affecting CO_(2) reduction activity and selectivity are analyzed and summarized.In the end,the challenges and prospects for the future development of highly g-C_(3)N_(4)-based photocatalysts in CO_(2) reduction are also presented.展开更多
Photocatalytic water splitting is beneficial for the effective mitigation of global energy and environmental crises.Owing to multi-exciton generation,impressive light harvesting,and excellent photochemical properties,...Photocatalytic water splitting is beneficial for the effective mitigation of global energy and environmental crises.Owing to multi-exciton generation,impressive light harvesting,and excellent photochemical properties,the quantum dot(QD)-based catalysts reveal a considerable potential in photocatalytic hydrogen(H_(2))production compared with bulk competitors.In this review,we summarize the recent advances in QDs for photocatalytic H_(2) production by enumerating different synthetic and characterization strategies for QDs.Various QDs-based photocatalysts are introduced and summarized in categories,and the role of different QDs in varied systems,as well as the mechanism and key factors that enhance the photocatalytic H_(2) generation performance,is discussed.Finally,conclusions and future perspectives in the exploration of highly efficient QDs-based photocatalysts for innovative applications are highlighted.展开更多
Background Depression,one of the most frequent complications after stroke,increases the disease’s burden and physical disability.Poststroke depression(PSD)is a multifactorial disease with genetic,environmental and bi...Background Depression,one of the most frequent complications after stroke,increases the disease’s burden and physical disability.Poststroke depression(PSD)is a multifactorial disease with genetic,environmental and biological factors involved in its occurrence.Genetic studies on PSD to date have mainly focused on the monoamine system and brain-derived neurotrophic factors.However,understanding is still limited about the influence of the single nucleotide polymorphism(SNP)of other neurotrophic factors on PSD.Aims The present study aimed to investigate the relationship between seven vascular endothelial growth factor(VEGF)family gene variants that occur with PSD.Methods A multicentre candidate gene study from five hospitals in Jiangsu Province from June 2013 to December 2014 involved 121 patients with PSD and 131 patients with non-PSD.Demographic characteristics and neuropsychological assessments were collected.Theχ^(2)test was used to evaluate categorical variables,while the independent t-test was applied to continuous variables.SNPs in seven genes(VEGFA,VEGFB,KDR,FLT-1,IGF-1,IGF-1R and PlGF)were genotyped.Single-marker association for PSD was analysed byχ^(2)tests and logistic regression using SPSS and PLINK software.Results Patients with PSD included more women and those with lower education levels,lower body mass indexes,lower Mini-Mental State Examination scores,and higher scores on the 17-item Hamilton Depression Rating Scale than non-PSD patients.Ninety-two SNPs with seven genes were genotyped and passed quality control.The rs7692791 CC genotypes,the C allele of KDR and the rs9282715 T allele of IGF-1R increased the risk for PSD(χ^(2)=7.881,p=0.019;χ^(2)=4.259,p=0.039;χ^(2)=4.222,p=0.040,respectively).In addition,the SNP rs7692791 of KDR was significantly associated with PSD by the logistic regression of an additive model(p=0.015,OR=9.584,95%CI:1.549 to 59.31).Conclusions Patients with rs7692791 C allele carriers or the CC genotype of KDR and the rs9282715 T allele of IGF-1R may have PSD susceptibility.Findings such as these may help clinicians to identify the high-risk population for PSD earlier and,thus,enable them to provide more timely interventions.展开更多
Bone substitute material implantation has become an important treatment strategy for the repair of oral and maxillofacial bone defects.Recent studies have shown that appropriate inflammatory and immune cells are essen...Bone substitute material implantation has become an important treatment strategy for the repair of oral and maxillofacial bone defects.Recent studies have shown that appropriate inflammatory and immune cells are essential factors in the process of osteoinduction of bone substitute materials.Previous studies have mainly focused on innate immune cells such as macrophages.In our previous work,we found that T lymphocytes,as adaptive immune cells,are also essential in the osteoinduction procedure.As the most important antigen-presenting cell,whether dendritic cells(DCs)can recognize non-antigen biomaterials and participate in osteoinduction was still unclear.In this study,we found that surgical trauma associated with materials implantation induces necrocytosis,and this causes the release of high mobility group protein-1(HMGB1),which is adsorbed on the surface of bone substitute materials.Subsequently,HMGB1-adsorbed materials were recognized by the TLR4-MYD88-NFκB signal axis of dendritic cells,and the inflammatory response was activated.Finally,activated DCs release regeneration-related chemokines,recruit mesenchymal stem cells,and initiate the osteoinduction process.This study sheds light on the immune-regeneration process after bone substitute materials implantation,points out a potential direction for the development of bone substitute materials,and provides guidance for the development of clinical surgical methods.展开更多
Periodontal bone regeneration is a major challenge in the treatment of periodontitis.Currently the main obstacle is the difficulty of restoring the regenerative vitality of periodontal osteoblast lineages suppressed b...Periodontal bone regeneration is a major challenge in the treatment of periodontitis.Currently the main obstacle is the difficulty of restoring the regenerative vitality of periodontal osteoblast lineages suppressed by inflammation,via conventional treatment.CD301b^(+)macrophages were recently identified as a subpopulation that is characteristic of a regenerative environment,but their role in periodontal bone repair has not been reported.展开更多
Henoch-Schnlein purpura(HSP) is a small-vessel vasculitis mediated by IgA-immune complex deposition.It is characterized by the clinical tetrad of non-thrombocytopenic palpable purpura,abdominal pain,arthritis and re...Henoch-Schnlein purpura(HSP) is a small-vessel vasculitis mediated by IgA-immune complex deposition.It is characterized by the clinical tetrad of non-thrombocytopenic palpable purpura,abdominal pain,arthritis and renal involvement.The diagnosis of HSP is difficult,especially when abdominal symptoms precede cutaneous lesions.We report a rare case of paroxysmal drastic abdominal pain with gastrointestinal bleeding presented in HSP.The diagnosis was verified by renal damage and the occurrence of purpura.展开更多
MicroRNAs(miRNAs) are a class of small noncoding RNAs that post-transcriptionally regulate the expression of many target genes via mRNA degradation or translation inhibition. Many studies have shown that miRNAs are in...MicroRNAs(miRNAs) are a class of small noncoding RNAs that post-transcriptionally regulate the expression of many target genes via mRNA degradation or translation inhibition. Many studies have shown that miRNAs are involved in the modulation of gene expression and replication of hepatitis B virus(HBV) and hepatitis C virus(HCV) and play a pivotal role in host-virus interactions. Increasing evidence also demonstrates that viral infection leads to alteration of the miRNA expression profile in hepatic tissues or circulation. The deregulated miRNAs participate in hepatocellular carcinoma(HCC)initiation and progression by functioning as oncogenes or tumor suppressor genes by targeting various genes involved in cancer-related signaling pathways. The distinct expression pattern of miRNAs may be a useful marker for the diagnosis and prognosis of virus-related diseases considering the limitation of currently used biomarkers. Moreover, the role of deregulated miRNA in host-virus interactions and HCC development suggested that miRNAs may serve as therapeutic targets or astools. In this review, we summarize the recent findings about the deregulation and the role of miRNAs during HBV/HCV infection and HCC development, and we discuss the possible mechanism of action of miRNAs in the pathogenesis of virus-related diseases. Furthermore, we discuss the potential of using miRNAs as markers for diagnosis and prognosis as well as therapeutic targets and drugs.展开更多
Objective:Previous studies have identified that kazrin is a constituent of desmosome and influences intercellular adhesion,growing development and morphology.We previously cloned another new isoform,kazrin F and foun...Objective:Previous studies have identified that kazrin is a constituent of desmosome and influences intercellular adhesion,growing development and morphology.We previously cloned another new isoform,kazrin F and found that it has anti-apoptotic effects on human glioma cell line.To further explore whether kazrin F is involved in tumorigenesis,we investigated its expression and role in cervical cancer(CC) cells.Methods:The role of kazrin F and miR-186 in CC was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT) assay,colony formation,transwell,and apoptosis assays.Using enhanced green fluorescent protein(EGFP) reporter assays,reverse transcription-quantitative polymerase chain reaction(RT-qPCR) and western blot analysis,we identified kazrin F post-transcriptional regulation by miR-186.Results:We demonstrate that kazrin F is highly expressed in CC tissues compared with the adjacent noncancerous tissues and promotes cell proliferation,colony formation,migration and invasion in HeLa and C33 A cells by suppressing apoptosis and facilitating epithelial-to-mesenchymal transition(EMT).Furthermore,miR-186 was confirmed as a regulator of kazrin F dysregulation.An EGFP reporter assay proved that miR-186 directly targets the 3'-untranslated region(3'UTR) of kazrin F and downregulates its expression,and miR-186 expression showed an inverse correlation with kazrin F levels in CC tissues.In addition,overexpression of miR-186 suppressed the malignant behaviors of CC cells.The ectopic expression of kazrin F rescued the inhibitory effects of miR-186.Conclusions:Our findings indicate that the upregulation of kazrin F due to downregulated miR-186 levels contributes to malignancy,and highlight the significance of kazrin F in CC tumorigenesis.展开更多
Background Reserpine is currently used by millions of Chinese hypertensive patients, in spite of the continued concern of its depressogenic effect, even when used in low dose. This study aimed to investigate the assoc...Background Reserpine is currently used by millions of Chinese hypertensive patients, in spite of the continued concern of its depressogenic effect, even when used in low dose. This study aimed to investigate the association between low-dose reserpine use and depression in older Chinese hypertensive patient. Methods In this cross-sectional, case-control study, we recruited patient aged 60 years or over who had regularly taken one or two tables of “compound reserpine and triamterene tablets (CRTTs)” for more than one year (reserpine user) from 26 community health centers located in 10 provinces in China. For each patient who took CRTTs, we selected an age (within five years) and sex matched hypertensive patient who had never taken any drugs containing reserpine (non-reserpine user) as control. Depressive symptoms were evaluated using a Chinese depression scale adapted from the Zung Self-Rating Depression Scale. Demographic, clinical data and laboratory examination results within six months were collected. Results From August 2018 to December 2018, 787 reserpine user and 787 non-reserpine user were recruited. The mean age of all study subjects was 70.3 years, with about equal numbers of males and females. The mean depression score was 40.4 in reserpine users and 40.6 in non-reserpine users (P = 0.7). The majority of study subject had a depression score < 53 (87.6% in reserpine users and 88.2% in non-reserpine users, respectively). There were no significant differences in the prevalence of mild, moderate or severe depression in reserpine users and non-reserpine users. Conclusions There is no association between low-dose reserpine use and depression in older hypertensive patient. The role of reserpine in the treatment and control of hypertension should be reconsidered;and further studies, especially randomized, controlled clinical trials to compare efficacy and safety of reserpine and other widely recommended anti-hypertensive agents are needed.展开更多
基金Natural Science Foundation of Xinjiang Province,Grant/Award Numbers:2019D01C064,2020D01A49,2020D01B25,2021D01B40National Natural Science Foundation of China,Grant/Award Numbers:21905209,52072273Tianshan innovation team project of Xinjiang Uygur Autonomous Region,Grant/Award Number:2021D14013。
文摘The persistent increase of CO_(2) levels in the atmosphere,already exceeding 400 ppm,urges the exploration of CO_(2) emission reduction and recycling technologies.Ideally,photocatalytic conversion of CO_(2) into valuable hydrocarbons realizes solar-to-chemical energy conversion,which is a desirable“kill two birds with one stone”strategy;namely,CO_(2) photoreduction can simultaneously tackle energy shortage and keep global carbon balance.Graphitic carbon nitride(g-C_(3)N_(4))working on CO_(2) reduction reaction deserves a highlight not only for the metal-free feature that endows it with low cost,tunable electronic structure,and easy fabrication properties but also because of its strong reduction ability.The present review concisely summarizes the latest advances of g-C_(3)N_(4)-based photocatalysts toward CO_(2) reduction.It starts with the discussion of thermodynamics and dynamics aspects of the CO_(2) reduction process.Then the modification strategies to promote g-C_(3)N_(4)-based photocatalysts in CO_(2) photoreduction have been discussed in detail,including surface functionalization,molecule structure engineering,crystallization,morphology engineering,loading cocatalyst,and constructing heterojunction.Meanwhile,the intrinsic factors affecting CO_(2) reduction activity and selectivity are analyzed and summarized.In the end,the challenges and prospects for the future development of highly g-C_(3)N_(4)-based photocatalysts in CO_(2) reduction are also presented.
基金Taishan Youth Scholar Program of Shandong ProvinceNational Natural Science Foundation of China,Grant/Award Numbers:21972058,21975110,22088102,51825205+3 种基金Postgraduate Practice Research Innovation Program of Jiangsu Province,Grant/Award Number:SJCX21_1707CAS Project for Young Scientists in Basic Research,Grant/Award Number:YSBR‐004DNL Cooperation Fund,CAS,Grant/Award Number:DNL202016National Key Projects for Fundamental Research and Development of China,Grant/Award Number:2018YFB1502002。
文摘Photocatalytic water splitting is beneficial for the effective mitigation of global energy and environmental crises.Owing to multi-exciton generation,impressive light harvesting,and excellent photochemical properties,the quantum dot(QD)-based catalysts reveal a considerable potential in photocatalytic hydrogen(H_(2))production compared with bulk competitors.In this review,we summarize the recent advances in QDs for photocatalytic H_(2) production by enumerating different synthetic and characterization strategies for QDs.Various QDs-based photocatalysts are introduced and summarized in categories,and the role of different QDs in varied systems,as well as the mechanism and key factors that enhance the photocatalytic H_(2) generation performance,is discussed.Finally,conclusions and future perspectives in the exploration of highly efficient QDs-based photocatalysts for innovative applications are highlighted.
基金This work was supported by the National Natural Science Foundation of China-Youth Foundation Projects(grant no:81901375)the Natural Science Foundation of Jiangsu Province(grant no:BK20180370).
文摘Background Depression,one of the most frequent complications after stroke,increases the disease’s burden and physical disability.Poststroke depression(PSD)is a multifactorial disease with genetic,environmental and biological factors involved in its occurrence.Genetic studies on PSD to date have mainly focused on the monoamine system and brain-derived neurotrophic factors.However,understanding is still limited about the influence of the single nucleotide polymorphism(SNP)of other neurotrophic factors on PSD.Aims The present study aimed to investigate the relationship between seven vascular endothelial growth factor(VEGF)family gene variants that occur with PSD.Methods A multicentre candidate gene study from five hospitals in Jiangsu Province from June 2013 to December 2014 involved 121 patients with PSD and 131 patients with non-PSD.Demographic characteristics and neuropsychological assessments were collected.Theχ^(2)test was used to evaluate categorical variables,while the independent t-test was applied to continuous variables.SNPs in seven genes(VEGFA,VEGFB,KDR,FLT-1,IGF-1,IGF-1R and PlGF)were genotyped.Single-marker association for PSD was analysed byχ^(2)tests and logistic regression using SPSS and PLINK software.Results Patients with PSD included more women and those with lower education levels,lower body mass indexes,lower Mini-Mental State Examination scores,and higher scores on the 17-item Hamilton Depression Rating Scale than non-PSD patients.Ninety-two SNPs with seven genes were genotyped and passed quality control.The rs7692791 CC genotypes,the C allele of KDR and the rs9282715 T allele of IGF-1R increased the risk for PSD(χ^(2)=7.881,p=0.019;χ^(2)=4.259,p=0.039;χ^(2)=4.222,p=0.040,respectively).In addition,the SNP rs7692791 of KDR was significantly associated with PSD by the logistic regression of an additive model(p=0.015,OR=9.584,95%CI:1.549 to 59.31).Conclusions Patients with rs7692791 C allele carriers or the CC genotype of KDR and the rs9282715 T allele of IGF-1R may have PSD susceptibility.Findings such as these may help clinicians to identify the high-risk population for PSD earlier and,thus,enable them to provide more timely interventions.
基金supported by the Beijing Training Project for the Leading Talents in S&T(Grant No.Z191100006119022)the National Key Program of the National Natural Science Foundation of China(Grant No.51705006)Capital’s Funds for Health Improvement and Research(2022-2Z-4106).
文摘Bone substitute material implantation has become an important treatment strategy for the repair of oral and maxillofacial bone defects.Recent studies have shown that appropriate inflammatory and immune cells are essential factors in the process of osteoinduction of bone substitute materials.Previous studies have mainly focused on innate immune cells such as macrophages.In our previous work,we found that T lymphocytes,as adaptive immune cells,are also essential in the osteoinduction procedure.As the most important antigen-presenting cell,whether dendritic cells(DCs)can recognize non-antigen biomaterials and participate in osteoinduction was still unclear.In this study,we found that surgical trauma associated with materials implantation induces necrocytosis,and this causes the release of high mobility group protein-1(HMGB1),which is adsorbed on the surface of bone substitute materials.Subsequently,HMGB1-adsorbed materials were recognized by the TLR4-MYD88-NFκB signal axis of dendritic cells,and the inflammatory response was activated.Finally,activated DCs release regeneration-related chemokines,recruit mesenchymal stem cells,and initiate the osteoinduction process.This study sheds light on the immune-regeneration process after bone substitute materials implantation,points out a potential direction for the development of bone substitute materials,and provides guidance for the development of clinical surgical methods.
基金supported by the National Natural Science Foundation of China(82025011,82220108018,82100975,82270981)the Fundamental Research Funds for the Central Universities(2042021kf0181)。
文摘Periodontal bone regeneration is a major challenge in the treatment of periodontitis.Currently the main obstacle is the difficulty of restoring the regenerative vitality of periodontal osteoblast lineages suppressed by inflammation,via conventional treatment.CD301b^(+)macrophages were recently identified as a subpopulation that is characteristic of a regenerative environment,but their role in periodontal bone repair has not been reported.
基金supported by the National Natural Science Foundation of China(51672113,51602132)the Six Talent Peaks Project in Jiangsu Province(2015-XCL-026)+2 种基金the Natural Science Foundation of Jiangsu Province(BK20171299)the Training Project of Jiangsu University for Young Cadre Teachers(5521220009)the Youth Research Project of Jiangsu Health and Family Planning Commission in 2016(Q201609)~~
基金Supported by The Major Projects Incubator Program of Sun Yat-Sen University,No.10ykjc25One Hundred Talents Program of Sun Yat-Sen University,No.82000-3171310+1 种基金Guangdong Science and Technology Program,No.2009B060300001National Natural Science Foundation of China,No.30971357
文摘Henoch-Schnlein purpura(HSP) is a small-vessel vasculitis mediated by IgA-immune complex deposition.It is characterized by the clinical tetrad of non-thrombocytopenic palpable purpura,abdominal pain,arthritis and renal involvement.The diagnosis of HSP is difficult,especially when abdominal symptoms precede cutaneous lesions.We report a rare case of paroxysmal drastic abdominal pain with gastrointestinal bleeding presented in HSP.The diagnosis was verified by renal damage and the occurrence of purpura.
基金Supported by National Natural Science Foundation of China,No.91029714,No.31071191,No.31270818 and No.31101000Natural Science Foundation of Tianjin,No.09JCZDJC17500 and No.12JCZDJC25100
文摘MicroRNAs(miRNAs) are a class of small noncoding RNAs that post-transcriptionally regulate the expression of many target genes via mRNA degradation or translation inhibition. Many studies have shown that miRNAs are involved in the modulation of gene expression and replication of hepatitis B virus(HBV) and hepatitis C virus(HCV) and play a pivotal role in host-virus interactions. Increasing evidence also demonstrates that viral infection leads to alteration of the miRNA expression profile in hepatic tissues or circulation. The deregulated miRNAs participate in hepatocellular carcinoma(HCC)initiation and progression by functioning as oncogenes or tumor suppressor genes by targeting various genes involved in cancer-related signaling pathways. The distinct expression pattern of miRNAs may be a useful marker for the diagnosis and prognosis of virus-related diseases considering the limitation of currently used biomarkers. Moreover, the role of deregulated miRNA in host-virus interactions and HCC development suggested that miRNAs may serve as therapeutic targets or astools. In this review, we summarize the recent findings about the deregulation and the role of miRNAs during HBV/HCV infection and HCC development, and we discuss the possible mechanism of action of miRNAs in the pathogenesis of virus-related diseases. Furthermore, we discuss the potential of using miRNAs as markers for diagnosis and prognosis as well as therapeutic targets and drugs.
基金supported in part by the National Natural Science Foundation of China(No.8157279091629302+1 种基金 31270818)the Natural Science Foundation of Tianjin (No.12JCZDJC25100,14JCYBJC26400,16JCYBJC42400)
文摘Objective:Previous studies have identified that kazrin is a constituent of desmosome and influences intercellular adhesion,growing development and morphology.We previously cloned another new isoform,kazrin F and found that it has anti-apoptotic effects on human glioma cell line.To further explore whether kazrin F is involved in tumorigenesis,we investigated its expression and role in cervical cancer(CC) cells.Methods:The role of kazrin F and miR-186 in CC was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT) assay,colony formation,transwell,and apoptosis assays.Using enhanced green fluorescent protein(EGFP) reporter assays,reverse transcription-quantitative polymerase chain reaction(RT-qPCR) and western blot analysis,we identified kazrin F post-transcriptional regulation by miR-186.Results:We demonstrate that kazrin F is highly expressed in CC tissues compared with the adjacent noncancerous tissues and promotes cell proliferation,colony formation,migration and invasion in HeLa and C33 A cells by suppressing apoptosis and facilitating epithelial-to-mesenchymal transition(EMT).Furthermore,miR-186 was confirmed as a regulator of kazrin F dysregulation.An EGFP reporter assay proved that miR-186 directly targets the 3'-untranslated region(3'UTR) of kazrin F and downregulates its expression,and miR-186 expression showed an inverse correlation with kazrin F levels in CC tissues.In addition,overexpression of miR-186 suppressed the malignant behaviors of CC cells.The ectopic expression of kazrin F rescued the inhibitory effects of miR-186.Conclusions:Our findings indicate that the upregulation of kazrin F due to downregulated miR-186 levels contributes to malignancy,and highlight the significance of kazrin F in CC tumorigenesis.
文摘Background Reserpine is currently used by millions of Chinese hypertensive patients, in spite of the continued concern of its depressogenic effect, even when used in low dose. This study aimed to investigate the association between low-dose reserpine use and depression in older Chinese hypertensive patient. Methods In this cross-sectional, case-control study, we recruited patient aged 60 years or over who had regularly taken one or two tables of “compound reserpine and triamterene tablets (CRTTs)” for more than one year (reserpine user) from 26 community health centers located in 10 provinces in China. For each patient who took CRTTs, we selected an age (within five years) and sex matched hypertensive patient who had never taken any drugs containing reserpine (non-reserpine user) as control. Depressive symptoms were evaluated using a Chinese depression scale adapted from the Zung Self-Rating Depression Scale. Demographic, clinical data and laboratory examination results within six months were collected. Results From August 2018 to December 2018, 787 reserpine user and 787 non-reserpine user were recruited. The mean age of all study subjects was 70.3 years, with about equal numbers of males and females. The mean depression score was 40.4 in reserpine users and 40.6 in non-reserpine users (P = 0.7). The majority of study subject had a depression score < 53 (87.6% in reserpine users and 88.2% in non-reserpine users, respectively). There were no significant differences in the prevalence of mild, moderate or severe depression in reserpine users and non-reserpine users. Conclusions There is no association between low-dose reserpine use and depression in older hypertensive patient. The role of reserpine in the treatment and control of hypertension should be reconsidered;and further studies, especially randomized, controlled clinical trials to compare efficacy and safety of reserpine and other widely recommended anti-hypertensive agents are needed.