Alternative polyadenylation events in epithelial cells sense endometritis progression in dairy cows

Endometritis(inflammation of the endometrial lining) is one of the most devastating reproductive diseases in dairy cattle, resulting in substantial production loss and causing more than $650 million in lost revenue annually in the USA.We hypothesize that alternative polyadenylation(APA) sites serve as decisive sensors for endometrium health and disease in dairy cows. Endometrial cells collected from 18 cows with purulent vaginal discharge scored 0 to 2 were used for APA profiling with our whole transcriptome termini site sequencing(WTTS-seq) method. Overall, pathogens trigger hosts to use more differentially expressed APA(DE-APA), more intronic DE-APA, more DE-APA sites per gene and more DE-genes associated with inflammation. Host CD59 molecule(CD59), Fc fragment of IgG receptor IIa(FCGR2A), lymphocyte antigen 75(LY75) and plasminogen(PLG) may serve as initial contacts or combats with pathogens on cell surface, followed by activation of nuclear receptor subfamily 1 group H member 4(NR1H4) to regulate AXL receptor tyrosine kinase(AXL), FGR proto-oncogene, Src family tyrosine kinase(FGR), HCK protooncogene, Src family tyrosine kinase(HCK) and integrin subunit beta 2(ITGB2) for anti-inflammation. This study is the first to show significance of cilium pathways in endometrium health and animal reproduction. MIR21 and MIR30A would be perfect antagonistic biomarkers for diagnosis of either inflammation or anti-inflammation. These novel findings will set precedent for future genomic studies to aid the dairy industry develop new strategies to reduce endometritis incidence and improve fertility.

SAT, a New Approach in Understanding and Treatment of Subclinical Endometritis in Dairy Cows

The aim of this work was to compare the use of local intrauterine moist heat infusion to intrauterine antibiotics infusion, for treatment of subclinical endometritis which affects reproduction and milk production. 42 repeat breeder cows were divided into 4 groups, group 1 was the untreated control (=10 cows). Group 2 (=10 cows) was treated by 50 ml of Oxytetracycline 5% intrauterine for three successive weeks. Group 3 (=10 cows) intrauterine infusion with 30 ml saline adding to them 10 ml Gentamycin 10% and 10 ml penicillin and streptomycin for three successive weeks. Group 4 (=12 cows) intrauterine infusion with 50 ml sterile boiling water (≈100°C) was applied directly to the uterus for only one time. Leukogram was done before and after treatment, it showed leukocytosis and neutrophilia in all the study groups. After treatment for 36 hours and one week, there were no significant changes in the leukogram results of groups 1, 2 and 3. While in Group 4 showed decreasing in numbers of leukocytes (11.92 ± 0.75) and neutrophils (0.87 ± 0.16) to its normal limits after 36 hours and one-week post-treatment. Our new method gave the highest cumulative pregnancy rate 83.3% while other groups using antibiotics or antibiotics with saline gave lower pregnancy rate 40% and 50% respectively (P > 0.001). We named this new treatment method “Samia-treat;SAT”. SAT is a whole new and effective treatment for cases of repeat breeder which are caused by SCE in dairy cows;it caused increase in reproductive performance and cumulative pregnancy rate without over use of antibiotics.

Treatment of cows with clinical endometritis Ⅲ as cows affected by pyometra-Non antibiotic treatment of severe clinical endometritis

Objective: To confirm the efficacy of non-antibiotic treatment with prostaglandin F2α(PGF2α) in dairy cows affected by severe clinical endometritis in (30±3) days in milk. Methods: Cows with clinical endometritis Ⅲ (n=399) were aligned into three groups randomly. The first group (n=115) received PGF2α, the second group (n=84) received intrauterine infusion (IUI) of oxytetracycline 10% + PGF2α, and the third group (n=200) received IUI. Cows were inseminated following estrus. The pregnancy status, parity, calving and artificial insemination season, ovaries with corpus luteum at the time of treatment, dystocia, body condition score and treatment groups were included in data analysis. Results: Total pregnancy rate was 40.1% after the first insemination and 94.2% after the third insemination. Overall pregnancy rate of treated cows with IUI+PGF2α(84.5%) was significantly lower than the treated cows with PGF2α(98.3%) or IUI (96%) (P<0.05). The first service pregnancy rate of inseminated cows in summer (14.3%) was lower in comparison with cows inseminated in spring (40.4%), fall (41.4%) and winter (51.7%) (P<0.05). Conclusions: PGF2α could treat severe clinical endometritis in dairy cows with corpus luteum in comparison with other treatments.

Exosomal miR-218 regulates the development of endometritis in dairy cows by targeting TGIF2/TGF-βpathway

Endometritis affects the reproductive capacity of dairy cows and leads to serious economic losses in dairy farming.Clarification of the pathogenesis of endometritis is necessary to improve the reproductive efficiency of dairy cows.Exosomes and their miRNAs have been proven to play an important role in inflammatory regulation.Exosomal miR-218 is a differentially expressed miRNA found in endometrial epithelial cells(EECs)under endometrial inflammation.Therefore,we investigated the expression of miR-218 in the uterine tissue of dairy cows,lipopolysaccharide(LPS)treated EECs,exosomal vesicles,and regulation of exosomal miR-218 by targeting TGIF-2 inducible factor homology frame 2(TGIF2)/transforming growth factor-beta(TGF-β).The expression of miR-218 was suppressed in inflammatory uterine tissues and LPS treated EECs.The expression of TGIF2 and TGF-βin inflammatory uterine tissues and LPS treated EECs was significantly higher than those in healthy uterine tissues and EECs(p<0.01).Interestingly,miR-218 derived from donor cells was found to regulate the expression of the target gene TGIF2 in recipient cells through the fusion of exosomes.Concurrently,the expression of its target gene TGIF2 was also suppressed by miR-218 in donor cells resulting in fewer TGIF2 being transported into recipient cells with exosomal fusion.This may be a novel mechanism of miRNAs-mediated regulation and provides a new reference for analyzing the pathogenesis of endometritis in dairy cows.

Dynamic Analysis of Nitric Oxide and Total Oxidant Capacity in Cow Uterine Secretion with Subclinical Endometritis

Subclinical endometritis is a physiological inflammation that serves to clear persistent contaminants from the uterus. To investigate the alteration of antioxidant, such as vitamin E(VE) and vitamin C(VC), total oxidant capacity(TOC) and nitric oxide(NO) in cows with normal and subclinical endometritis(SCE), we examined the concentrations of NO, VC and VE, TOC and polymorphonuclear neutrophils(PMN) percentage in uterine secretion. The cows were divided into two groups, normal(n=20) and subclinical endometritis(SCE, n=60), based on endometrial cytology(presence of PMN≥5%). Uterine secretion and blood were collected as described previously. Griess reaction was used to determine the concentration of NO. The concentrations of TOC, VC and VE were detected by a commercially available assay kit. The results showed that the concentrations of NO, TOC and PMN percentage were significantly higher(P<0.01, P<0.05, and P<0.01, respectively) in uterine secretion with SCE compared to those from normal; however, the levels of VC and VE were significantly lesser(P<0.01). In conclusion, the concentrations of NO, TOC, VC, VE and PMN percentage differed between normal and SCE cows. Meanwhile, the relationship between the concentration of NO and PMN percentage from uterine secretion in cows with subclinical endometritis were positively correlated. Consequently, these alterations in NO, TOC, VC, VE levels and PMN percentage contributed to as a diagnostic index of the uterine inflammation, with the aim to increase the reproduction of the cows and the decrease economic losses.

Chronic atrophic endometritis and pyometra in a ferret: A case report

The aim of this report was to describe a clinical case of chronic atrophic endometritis as a complication of cystic endometrial hyperplasia-pyometra complex in a non-spayed ferret. The ferret was presented with a slight abdominal distension and odorless purulent vulvar discharge after unsuccessful medical treatment with enrofloxacine and aglepristone 2 months ago in another clinic. Ultrasonography revealed enlarged uterine horns filled with fluid and blood laboratory analysis showed anaemia and leukocytosis, so diagnosis of pyometra was made. Laparotomy and ovariohysterectomy were performed. Histopathological and microbiological examination of the uterus revealed the presence of purulent atrophic endometritis caused by Staphylococcus spp. In conclusion, this is a very rare case of endometrial atrophia after chronic uterine inflammation in a ferret.

Evaluation of Puerperal and Postpartum Infections after Cesarean Section and Their Clinical Outcomes

Puerperal and postpartum infections after cesarean section are a leading cause of maternal and neonatal morbidity and mortality worldwide. Postpartum infections account for a significant, and often preventable, portion of the global healthcare burden. Puerperal sepsis is one of the top five causes of maternal deaths worldwide and accounts for 10% - 15% of deaths in the postpartum period. Postpartum infections also present a significant social burden: they increase maternal anxiety and the risk of postpartum depression, interfere with bonding, and negatively impact breastfeeding. To prevent complications and improve outcomes, the evaluation of these infections must be accurate and prompt. This review provided a summary of causes, clinical presentation, laboratory tests, imaging modalities, treatment options, complications, and prognosis of puerperal and postpartum infections following cesarean section. Future directions in the evaluation of these infections were also discussed, including the development of novel diagnostic assays, the use of point-of-care testing and risk factors responsible for the onset of infections. This review emphasized the significance of early diagnosis and prompted treatment of these infections in order to prevent complications and enhance maternal and neonatal outcomes. This article also provided an exhaustive overview of the evaluation and management of puerperal and postpartum infections and the clinical outcome of infections for both mother and neonate.

Diagnostic and Therapeutic Model of Sepsis and Purulent-Inflammatory Diseases

In this study, the method of fluorescence spectroscopy was used to improve the diagnostics and prediction of sepsis, pyo-inflammatory diseases and postpartum endometritis. At the first stage of the study, the researcher explored the fluorescence spectra of dilutions of serum with centrifuged and non-centrifuged bacterial culture (6-day crop sugar broth with Staphylococcus aureus), distilled water, 20% albumin and sugar broth. The focus was on the influence of treatment, including infusion therapy, on the fluorescence spectral characteristics of a patient’s serum. At the second stage, the method of fluorescence spectroscopy was used for the diagnosis of sepsis in vivo. At the third stage, the analyst scrutinized the peculiarities of pregnancy, childbirth, and the postpartum period (totally, 40 parameters) in patients with postpartum pyo-inflammatory diseases and in the control group.

Rare Case of Abortion Complication: Bilateral Abscess of the Shoulders

Septic abortions usually result from intrauterine maneuvers using non-sterile instruments or materials;they are much more common when abortion is illegal. We report the clinical case of a 28-year-old patient following a complicated abortion of endometritis and bilateral abscess of the shoulders, requiring surgical drainage and antibiotic therapy. The bacterium identified was Escherichia coli, sensitive to ceftriaxone.

Infectious Complications after Cesarean Delivery: Trends of Incidences, Risk Factors, and Prognosis in a Third Health Level Center in Africa. Case of Gabriel TouréTeaching Hospital

Post cesarean infections are the main sources of fever in the postpartum. We have undertaken this study in an African health setting where conditions of working are different from those in developed countries. Objectives: The objectives of this survey were to appreciate incidences, risk factors and prognosis of post cesarean infections. Method: We conducted a randomized historical cohort study in the department of gynecology and obstetrics of Gabriel Touré teaching hospital from 2010 to 2015. Data have been analyzed using X2 or Fisher test according their application conditions, p value Results: From 2010 to 2015 we performed 15,963 deliveries within 5263 cesareans sections (32.97%). According to all the deliveries, the global frequency of infection fluctuates from 1.5% in 2010 to 2.1% in 2015. The main risks that influenced the occurrence of post cesarean infections were: the context of cesarean section (RR = 2.05;CI95% (1.35 - 3.11);p 0.01), the prolonged labor (RR = 1.38;CI95% (1.05 - 1.81);p 0.01), the length of cesarean (RR = 3.00;CI95% (1.89 - 4.90);p 0.01), and genital bleeding (RR = 1.50;CI95% (1.10 - 1.90);p 0.01). The complications reported were endometritis (43.55%), wound infection (18.11%), breast infection (32.05%), puerperal psychosis (9 cases). We recorded six cases of pelviperitonitis and three cases of sepsis. Four cases of maternal death due to septic shock have been recorded (1.43%). Conclusion: Post cesarean infections constitute a real problem of public health in developing countries. In our survey, the main factors of infections have been context of cesarean, prolonged labor and length of cesarean. Endometritis, breast infection and wound infection are the major complications after cesarean section. The respect of protocol of the management of patients should permit to prevent this deadly complication.

Epidemiological, Clinical, Therapeutic and Prognostic Aspects of Puerperal Infections within the Gynecology Obstetrics Department of Yalgado Ouedraogo University Teaching Hospital (CHU-YO), Burkina Faso

Objective: Conduct a study about the epidemiological, clinical, therapeutic and prognostic aspects of puerperal infections within Gynecology Obstetrics department of CHU-YO during the study period. Patients and Methods: This was a cross-sectional and descriptive study. The study period was from January 1st to December 31st, 2019. Data collection was retrospective. The exhaustive sample included all female patients having a puerperal infection. Results: Our study included 65 patients. The frequency of puerperal infections represented 1% of deliveries, the average age of patients was 27 ± 7.26 years. Housewives represented 64.4% of the patients. Hyperthermia and abdominal-pelvic pain respectively occurred in 63.8% and 21.3% of patients. The patients had given birth by caesarean section in 83.1% of cases. Endometritis represented 76.9% of cases of puerperal infections. The patients were treated with antibiotics, uterotonics and symptomatic therapy. Maternal death occurred in 13.9% of cases. Conclusion: A focus should be put on preventive measures in front of any high-risk puerperal infection situation.

Hormone-like activities of Kuntai capsule in the uteri of ovariectomized rats and immature rabbits

OBJECTIVE: To investigate the hormone-like activities of Kuntai capsule(KTC) in the uteri of ovariectomized rats and immature rabbits.METHODS: Following bilateral ovariectomy, rats were randomly divided into six groups including sham group, control group, estradiol valerate group, KTC 0.24, 0.6, and 1.5 g/kg groups. The rats were treated with 0.5% CMC-Na, estradiol valerate and KTC(0.24, 0.6, and 1.5 g/kg), respectively for 28 consecutive days. Then the estrous cycle, uterine changes and pathological changes were examined.Serum levels of estradiol(E2), and progesterone(P4)were measured by enzyme-linked immunosorbent assay(ELISA). Protein levels of estradiol receptor(ER), progesterone receptor(PR), vascular endothelial growth factor(VEGF), proliferating cell nuclear antigen(PCNA) and nuclear-associated antigen-67(Ki-67) in uterine tissues were detected by western blot. Immature rabbits were estrogen-primed prior to intragastric administration with KTC for 6 d consecutively. Then, the uteri underwent hematoxylin-eosin staining to observe endometrial transformation.RESULTS: Compared with the control group, 0.6and 1.5 g/kg KTC markedly decreased the uterine organ coefficient and endometrial thickness(P <0.05). The serum level of P4 was increased in the KTC 0.6 g/kg group(P < 0.05). There were no significant variations in the serum level of E2 in the KTC groups compared with the control group. ERβ, but not ERα, was markedly upregulated after KTC administration(P < 0.05). Furthermore, 1.5 g/kg KTC significantly decreased the protein level of PRA(P <0.05) and 0.6 g/kg KTC increased the protein level of PRB in the uteri(P < 0.05). VEGF was highly expressed after treatment with 0.24 and 0.6 g/kg KTC,and Ki-67 was markedly reduced in ovariectomized rats treated with 1.5 g/kg KTC. No difference was found in the expression of PCNA. KTC 0.24 and0.6 g/kg promoted endometrial transformation in immature rabbit uteri.CONCLUSION: KTC does not demonstrate obvious estrogen-like effect on uteri after ovariectomy, but it does exhibit weak progestogen-like effect, by which mechanism of action is yet to be further investigated.