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1.
Biochem Cell Biol ; 102(3): 226-237, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38377487

RESUMEN

We here describe the structure-based design of small molecule inhibitors of the type IV secretion system of Helicobacter pylori. The secretion system is encoded by the cag pathogenicity island, and we chose Cagα, a hexameric ATPase and member of the family of VirB11-like proteins, as target for inhibitor design. We first solved the crystal structure of Cagα in a complex with the previously identified small molecule inhibitor 1G2. The molecule binds at the interface between two Cagα subunits and mutagenesis of the binding site identified Cagα residues F39 and R73 as critical for 1G2 binding. Based on the inhibitor binding site we synthesized 98 small molecule derivates of 1G2 to improve binding of the inhibitor. We used the production of interleukin-8 of gastric cancer cells during H. pylori infection to screen the potency of inhibitors and we identified five molecules (1G2_1313, 1G2_1338, 1G2_2886, 1G2_2889, and 1G2_2902) that have similar or higher potency than 1G2. Differential scanning fluorimetry suggested that these five molecules bind Cagα, and enzyme assays demonstrated that some are more potent ATPase inhibitors than 1G2. Finally, scanning electron microscopy revealed that 1G2 and its derivatives inhibit the assembly of T4SS-determined extracellular pili suggesting a mechanism for their anti-virulence effect.


Asunto(s)
Adenosina Trifosfatasas , Proteínas Bacterianas , Helicobacter pylori , Helicobacter pylori/enzimología , Humanos , Adenosina Trifosfatasas/antagonistas & inhibidores , Adenosina Trifosfatasas/metabolismo , Adenosina Trifosfatasas/química , Proteínas Bacterianas/antagonistas & inhibidores , Proteínas Bacterianas/metabolismo , Proteínas Bacterianas/química , Bibliotecas de Moléculas Pequeñas/farmacología , Bibliotecas de Moléculas Pequeñas/química , Sistemas de Secreción Tipo IV/metabolismo , Sistemas de Secreción Tipo IV/química , Sistemas de Secreción Tipo IV/antagonistas & inhibidores , Diseño de Fármacos , Infecciones por Helicobacter/tratamiento farmacológico , Infecciones por Helicobacter/microbiología , Cristalografía por Rayos X , Inhibidores Enzimáticos/farmacología , Inhibidores Enzimáticos/química , Modelos Moleculares , Sitios de Unión , Relación Estructura-Actividad , Línea Celular Tumoral , Interleucina-8/metabolismo
2.
Microbiol Res ; 273: 127417, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37267815

RESUMEN

Enormous efforts in recent past two decades to eradicate the pathogen that has been prevalent in half of the world's population have been problematic. The biofilm formed by Helicobacter pylori provides resistance towards innate immune cells, various combinatorial antibiotics, and human antimicrobial peptides, despite the fact that these all are potent enough to eradicate it in vitro. Biofilm provides the opportunity to secrete various virulence factors that strengthen the interaction between host and pathogen helping in evading the innate immune system and ultimately leading to persistence. To our knowledge, this review is the first of its kind to explain briefly the journey of H. pylori starting with the chemotaxis, the mechanism for selecting the site for colonization, the stress faced by the pathogen, and various adaptations to evade these stress conditions by forming biofilm and the morphological changes acquired by the pathogen in mature biofilm. Furthermore, we have explained the human GI tract antimicrobial peptides and the reason behind the failure of these AMPs, and how encapsulation of Pexiganan-A(MSI-78A) in a chitosan microsphere increases the efficiency of eradication.


Asunto(s)
Infecciones por Helicobacter , Helicobacter pylori , Humanos , Péptidos Antimicrobianos , Infecciones por Helicobacter/tratamiento farmacológico , Biopelículas , Antibacterianos/farmacología
3.
Health Res Policy Syst ; 21(1): 33, 2023 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-37131159

RESUMEN

Despite the high burden of mental disorders in low- and middle-income countries (LMICs), less than 25% of those in need have access to appropriate services, in part due to a scarcity of locally relevant, evidence-based interventions and models of care. To address this gap, researchers from India and the United States and the Indian Council of Medical Research (ICMR) collaboratively developed a "Grantathon" model to provide mentored research training to 24 new principal investigators (PIs). This included a week-long didactic training, a customized web-based data entry/analysis system and a National Coordination Unit (NCU) to support PIs and track process objectives. Outcome objectives were assessed via scholarly output including publications, awards received and subsequent grants that were leveraged. Multiple mentorship strategies including collaborative problem-solving approaches were used to foster single-centre and multicentre research. Flexible, approachable and engaged support from mentors helped PIs overcome research barriers, and the NCU addressed local policy and day-to-day challenges through informal monthly review meetings. Bi-annual formal review presentations by all PIs continued through the COVID-19 pandemic, enabling interim results reporting and scientific review, also serving to reinforce accountability. To date, more than 33 publications, 47 scientific presentations, 12 awards, two measurement tools, five intervention manuals and eight research grants have been generated in an open-access environment. The Grantathon is a successful model for building research capacity and improving mental health research in India that could be adopted for use in other LMICs.


Asunto(s)
Investigación Biomédica , COVID-19 , Humanos , Estados Unidos , Mentores , Pandemias , Investigación Biomédica/educación , Salud Mental
4.
J West Afr Coll Surg ; 13(4): 67-72, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38449544

RESUMEN

Background: Hernioplasty, in which a mesh is used to strengthen a weakness or defect in the inguinal wall, has replaced simple tissue repair. As it is associated with low recurrence, it is considered the gold standard and is one of the most common general surgical procedures. The ideal repair should be rapid, safe and simple to do, requires minimal dissection to create sufficient space, be cost-effective and be accompanied by a brief hospital stay, reduced pain, and fewer recurrences. The aim of the present study was to compare the efficacy of 3-stitch mesh fixation with that of traditional Lichtenstein mesh fixation of inguinal hernia repair. Materials and Methods: Between July 2018 and December 2019, 59 cases of primary, uncomplicated inguinal hernias were surgically treated. Both the classical Lichtenstein technique (group A, n = 30) and the Lichtenstein technique with the three-stitch fixation method (group B, n = 29) were used on patients with inguinal hernias. Between the two groups, the mean operative times, post-surgical pain scores, average hospital stays and postoperative complications including recurrence rates were compared. Results: With a P-value of 0.001, the 3-point fixation group (group B) took 3.41 ± 0.58 min less time to fix the mesh than the Lichtenstein group (group A, 5.52 ± 0.59 min). The pain after surgery was much less for participants who had 3-point mesh fixation than for those who had conventional mesh fixation in the early (1, 3, 7 and 15 days after surgery) and late (1 month and 3 months) postoperative periods, with a P-value of 0.0001. When compared to the classical mesh fixation group, the 3-point mesh fixation group had less urinary retention, seroma and swelling. Both groups had the same number of other complications. Conclusions: The three-point hernioplasty is a simple procedure that is easier to adopt, less time-consuming, causes less trauma and has a lower risk of postoperative discomfort including chronic groin pain.

5.
Cureus ; 14(10): e29812, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36337811

RESUMEN

Introduction Liver abscesses are rare, but whenever they occur, it is predominantly among males over 60 years of age. The paradigm in the treatment has changed, and percutaneous drainage is now the initial treatment for drainage of the abscesses. Open surgery is reserved for patients with septated abscesses and those greater than 5 cm. Objective  To study the etiological, clinical, pathological, and demographic characteristics of individuals with liver abscesses and to evaluate the outcome associated with different treatment strategies. Methods This clinico-epidemiological study was carried out at a tertiary care hospital in Jodhpur. One hundred patients with liver abscesses were studied. Patients were assigned to three groups: Group 1 - medical management alone (in non-aspirable uncomplicated abscess), Group 2 - USG-guided needle aspiration or pigtail percutaneous catheter drainage plus medical management (in unruptured aspirable abscess), Group 3 - open surgical drainage plus medical management (In ruptured abscesses). Of the total patients, 36% were treated with medical therapy alone, 45% with USG-guided needle aspiration, 10% with USG-guided percutaneous catheter drainage, and 9% with open surgical drainage. Results In our study, fever and hepatomegaly were the commonest presentations, observed in 91% and 62% of cases, respectively. Escherichia coli (E.coli) was the predominant organism cultured in 28 (43.75%) patients followed by Klebsiella growing in 24 (37.50%) patients. The right lobe was affected more (83%) than the left lobe and in the majority (83%), a solitary abscess was present. The mean age of liver abscess presentation was 40.72 years, with a 5.67:1 male-to-female ratio. Alcohol consumption was reported by 33% of patients, the majority of whom were men. Serum bilirubin was elevated in 56% of liver abscess patients, while it was normal in 44%. The mean serum bilirubin was 2.08 mg/dl. The mean value in group 1, group 2, and group 3 was 1.44 mg/dl, 2.23 mg/dl, and 2.57 mg/dl, respectively. Liver abscesses were identified in 76% of patients with right lobes; 83% had solitary liver abscesses and 17% had numerous abscesses. Abscess culture showed E. coli in 21 (32.81%) and Klebsiella in 17 (26.56%) patients. Conclusion Right-sided solitary pyogenic liver abscess caused by E.coli is the most common liver abscess, with fever and hepatomegaly as the most common presentation. Non-aspirable liver abscesses, regardless of aetiology, can be successfully treated by medical therapy alone. Needle aspiration or catheter drainage is standard for liver abscesses. Thus, needle aspiration has replaced the surgical exploration of liver abscesses.

7.
Front Microbiol ; 13: 962619, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36060785

RESUMEN

Pesticides are either natural or chemically synthesized compounds that are used to control a variety of pests. These chemical compounds are used in a variety of sectors like food, forestry, agriculture and aquaculture. Pesticides shows their toxicity into the living systems. The World Health Organization (WHO) categorizes them based on their detrimental effects, emphasizing the relevance of public health. The usage can be minimized to a least level by using them sparingly with a complete grasp of their categorization, which is beneficial to both human health and the environment. In this review, we have discussed pesticides with respect to their global scenarios, such as worldwide distribution and environmental impacts. Major literature focused on potential uses of pesticides, classification according to their properties and toxicity and their adverse effect on natural system (soil and aquatic), water, plants (growth, metabolism, genotypic and phenotypic changes and impact on plants defense system), human health (genetic alteration, cancer, allergies, and asthma), and preserve food products. We have also described eco-friendly management strategies for pesticides as a green solution, including bacterial degradation, myco-remediation, phytoremediation, and microalgae-based bioremediation. The microbes, using catabolic enzymes for degradation of pesticides and clean-up from the environment. This review shows the importance of finding potent microbes, novel genes, and biotechnological applications for pesticide waste management to create a sustainable environment.

8.
Cureus ; 14(6): e26412, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35911278

RESUMEN

Background Glioblastoma is the most frequent and the most aggressive primary malignant brain tumor in adults. Standard treatment includes surgical removal of the tumor followed by concomitant chemotherapy and radiotherapy. Temozolomide, an oral alkylating agent, is currently the most commonly used chemotherapy. However, the median survival of glioblastoma multiforme (GBM) patients remains very low. Epidermal growth factor receptor variant III (EGFRvIII) is a novel marker for GBM patients of Indian origin as very few studies have been done on this molecular marker in our country. This is the first study utilizing this molecular marker among GBM patients in Rajasthan, India. This was a single institutional study that aimed to estimate the proportion of EGFRvIII mutation in GBM patients of Indian origin. Methodology This was a non-randomized, ambispective, single institutional observational study done on 35 brain tissue biopsies of histopathologically diagnosed and confirmed cases of GBM based on the World Health Organization 2007 Classification received in the pathology department of Dr. Sampurnanand Medical College, Jodhpur from 2015 to 2020 after applying inclusion and exclusion criteria. Molecular study of the EGFRvIII marker was conducted in all cases of GBM in the same institution on the RNA extracted from selected biopsy samples. Statistical analysis was performed using the SPSS version 22.0 software package (IBM Corp., Armonk, NY USA). The correlation between age and gender with EGFR-positive cases was analyzed, and EGFR positivity compared with previous studies. Results The occurrence of the EGFRvIII mutation was found to be 17.4% (6/35 cases). The mean age of presentation of a tumor with this mutation was estimated to be 54.3 years. Males were more commonly found to be affected (66.6%, 4/6 cases). Conclusions Thus, the identification of this mutation would segregate patients who may benefit from newer therapeutic approaches. In the future, personalized treatment may be advised for GBM patients depending on the presence of the EGFRvIII mutation.

9.
Cureus ; 14(7): e27279, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36039260

RESUMEN

Background Ventral hernias are the second most common type of hernias accounting for 21-35% of all hernia types. Ventral hernia includes incisional, umbilical, epigastric, and Spigelian hernias, among others. Currently, patients and surgeons prefer laparoscopic repair of ventral hernias. This study aimed to compare laparoscopic with open hernia repair in terms of various operative and patient parameters. Methodology This was a prospective observational study conducted in the Department of General Surgery, Dr. Sampurnanand Medical College, Jodhpur. All patients admitted with a diagnosis of ventral hernia for mesh repair (open as well as laparoscopic) were included. Laparoscopic and open hernia repair were compared in terms of operative time, postoperative hospital stay, time to resume routine activity, postoperative complications, and recurrence. Results Among the 50 patients included in the study (25 patients each in the laparoscopic and open groups), the mean operative time was 57.52 ± 5.80 minutes in the laparoscopic group and 59.8 ± 11.15 minutes in the open group. The mean hospital stay in the laparoscopy and open groups was 7.4 ± 1.58 days and 9.88 ± 2.96 days, respectively (p-value = 0.0006; significant). Postoperative pain (using the visual analog scale score) was less in patients who underwent laparoscopic surgery (p-value = 0.001; significant). Seroma and surgical site infections were the most common complications which were observed more in the open hernia repair group. Recurrence was seen in one case operated by the open technique. Conclusions Laparoscopic ventral hernia repair is technically safer, effective, and feasible with better clinical outcomes in patients seeking treatment in a government hospital.

10.
Biosensors (Basel) ; 12(8)2022 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-36005000

RESUMEN

Chronic obstructive pulmonary disease (COPD) is a significantly concerning disease, and is ranked highest in terms of 30-day hospital readmission. Generally, physical activity (PA) of daily living reflects the health status and is proposed as a strong indicator of 30-day hospital readmission for patients with COPD. This study attempted to predict 30-day hospital readmission by analyzing continuous PA data using machine learning (ML) methods. Data were collected from 16 patients with COPD over 3877 days, and clinical information extracted from the patients' hospital records. Activity-based parameters were conceptualized and evaluated, and ML models were trained and validated to retrospectively analyze the PA data, identify the nonlinear classification characteristics of different risk factors, and predict hospital readmissions. Overall, this study predicted 30-day hospital readmission and prediction performance is summarized as two distinct approaches: prediction-based performance and event-based performance. In a prediction-based performance analysis, readmissions predicted with 70.35% accuracy; and in an event-based performance analysis, the total 30-day readmissions were predicted with a precision of 72.73%. PA data reflect the health status; thus, PA data can be used to predict hospital readmissions. Predicting readmissions will improve patient care, reduce the burden of medical costs burden, and can assist in staging suitable interventions, such as promoting PA, alternate treatment plans, or changes in lifestyle to prevent readmissions.


Asunto(s)
Readmisión del Paciente , Enfermedad Pulmonar Obstructiva Crónica , Acelerometría , Ejercicio Físico , Humanos , Aprendizaje Automático , Estudios Retrospectivos
11.
Cureus ; 14(6): e26161, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35891871

RESUMEN

Background Burn injuries are highly variable and dynamic. The outcome of patients is influenced by various factors and requires prompt therapeutic interventions, including fluid resuscitation, for a favorable result. Although having varying shortcomings, many scoring indexes are developed and validated in Western countries to predict mortality in a burn patient. The Abbreviated Burn Severity Index (ABSI) estimates survival expectancy in a burn patient via various negative prognostic factors. This study describes the pattern of burn injuries to validate the ABSI as an outcome predictor in burnt patients. Methodology From January to December 2018, 100 patients participated in this observational research conducted in the Department of Surgery at Mahatma Gandhi Hospital's Burn Ward, a part of Dr. Sampurnanand Medical College, Jodhpur. Risk factors for death from a burn were patients' age and gender, the depth of the burn, the inhalation burn, and the total burned body surface area (TBSA). The area under the receiver operating curve (AUROC) was used to determine how well it could predict burn deaths. Results This study included 100 patients (69 men and 31 women, with a ratio of 2.22:1). In total, 73 patients survived, and 27 died (a mortality rate of 27%). The fatality rate increased with increased burn surface area, reaching 100% in patients with >80% burns (p < 0.0001). Additionally, those with an ABSI of >11 expressed 100% mortality rate (p < 0.0001). Conclusions In this study, older age, high burned surface area, concomitant inhalational burns, full-thickness burns, and a higher ABSI were found to be significant predictors of mortality.

12.
Cureus ; 14(6): e25900, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35844310

RESUMEN

Phacomatosis pigmentovascularis is a rare dermal disorder attributed to the presence of various nevi. These lesions exist since birth, so the patient remains well aware of them. Various systemic involvements may be associated with the nevus, but the association of Raynaud's phenomenon is seldom reported. Our patient came with similar features and, on workup, no neurovascular compression was present, such as cervical rib or thoracic outlet syndrome. Therefore, he was managed conservatively and experienced improvement following the treatment. The objective of reporting this case is to highlight the association of Raynaud's phenomenon with such nervous lesions.

13.
Cureus ; 14(5): e24784, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35676975

RESUMEN

An inguinoscrotal hernia is considered to be giant when it passes beyond the midpoint of the thigh in a standing position. It is a rare condition that can lead to complications such as obstruction and perforation. Here, we present the case of a 35-year-old male who was diagnosed with a giant inguinoscrotal hernia with transverse colon perforation peritonitis. The patient presented with acute abdomen and septic shock. On presentation, resuscitation was started and an emergency laparotomy was performed. Resection of the gangrenous bowel segment and end jejunostomy was done as damage control surgery. However, despite intensive care and efforts, the patient succumbed due to multiorgan dysfunction syndrome (MODS). This is a rare case of a giant inguinoscrotal hernia with transverse colon perforation peritonitis, leading to MODS and mortality.

14.
iScience ; 25(7): 104528, 2022 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-35677392

RESUMEN

SARS-CoV-2 infection of host cells starts by binding the Spike glycoprotein (S) to the ACE2 receptor. The S-ACE2 interaction is a potential target for therapies against COVID-19 as demonstrated by the development of immunotherapies blocking this interaction. VE607 - a commercially available compound composed of three stereoisomers - was described as an inhibitor of SARS-CoV-1. Here, we show that VE607 broadly inhibits pseudoviral particles bearing the Spike from major VOCs (D614G, Alpha, Beta, Gamma, Delta, Omicron - BA.1, and BA.2) as well as authentic SARS-CoV-2 at low micromolar concentrations. In silico docking, mutational analysis, and smFRET revealed that VE607 binds to the receptor binding domain (RBD)-ACE2 interface and stabilizes RBD in its "up" conformation. Prophylactic treatment with VE607 did not prevent SARS-CoV-2-induced mortality in K18-hACE2 mice, but it did reduce viral replication in the lungs by 37-fold. Thus, VE607 is an interesting lead for drug development for the treatment of SARS-CoV-2 infection.

15.
Cureus ; 14(5): e25229, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35755569

RESUMEN

INTRODUCTION: Locally advanced breast cancer (LABC) is a subset of breast cancer characterized by the most advanced breast tumours in the absence of distant metastasis. Treatment of LABC has evolved from a single modality treatment to multimodality management. Neoadjuvant chemotherapy (NACT) is increasingly being used to treat patients with LABC. This study assessed tumour response after NACT using clinical changes, Response Evaluation Criteria in Solid Tumors (RECIST) criteria and pathological report. METHODOLOGY: This study was a prospective as well as retrospective observational study carried out in the department of general surgery, Dr. Sampurnanand Medical College, Jodhpur. All the patients admitted with stage III (IIIA, IIIB, IIIC) were included in the study after obtaining approval from the institutional ethical committee. Clinical response was assessed by RECIST criteria (clinical complete response (cCR), clinical partial response (cPR), clinical progressive disease (cPD), and clinical stable disease (cSD)) and pathological response by histopathological report (pCR). Response of various molecular subtypes was noted. RESULTS: Among 31 patients included in the study, cCR observed in 22.58% cases, cPR observed in 61.29% cases while cPD and cSD seen in 3.22% and 12.90% cases, respectively. Pathological complete response (pCR) observed in 19.35% cases. Favourable response seen with human epidermal growth factor receptor 2 (HER2) overexpression (cCR = 50%, pCR = 37.50%) followed by triple negative (cCR = 25%, pCR = 25%) molecular subtypes. CONCLUSIONS: It can be concluded that molecular subtype determination helps in deciding treatment protocol in patients with LABC with HER2 overexpression and triple-negative breast cancers having a better clinicopathological response to NACT than luminal subtypes. NACT results in downstaging of tumours, thus, help in achieving surgically clear margins and elimination of micrometastases which decreases the recurrence rates and morbidity/mortality of patients.

16.
Cureus ; 14(4): e24359, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35611045

RESUMEN

Trichobezoar, a rare disorder commonly seen in psychiatric patients having a habit of plucking and eating their own hair, is a ball of hair admixed with gastro-intestinal secretions that leads to the blocking of the passage of food particles. Presentation of the disease is variable, ranging from asymptomatic to severe complications including obstruction and perforation. We report a case of a 27-year-old female patient who presented with an acute abdomen and on laparotomy, gastric perforation secondary to large gastric trichobezoar was found. The patient was treated with en bloc removal of the trichobezoar.

17.
bioRxiv ; 2022 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-35233570

RESUMEN

SARS-CoV-2 infection of host cells starts by binding of the Spike glycoprotein (S) to the ACE2 receptor. The S-ACE2 interaction is a potential target for therapies against COVID-19 as demonstrated by the development of immunotherapies blocking this interaction. Here, we present the commercially available VE607, comprised of three stereoisomers, that was originally described as an inhibitor of SARS-CoV-1. We show that VE607 specifically inhibits infection of SARS-CoV-1 and SARS-CoV-2 S-expressing pseudoviral particles as well as authentic SARS-CoV-2. VE607 stabilizes the receptor binding domain (RBD) in its "up" conformation. In silico docking and mutational analysis map the VE607 binding site at the RBD-ACE2 interface. The IC 50 values are in the low micromolar range for pseudoparticles derived from SARS-CoV-2 Wuhan/D614G as well as from variants of concern (Alpha, Beta, Gamma, Delta and Omicron), suggesting that VE607 has potential for the development of drugs against SARS-CoV-2 infections.

18.
Life Sci ; 288: 120149, 2022 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-34843738

RESUMEN

AIM: An enormous presence and their identified role as stress managers, antibiotic resistance, persistence, and biofilm formation is the reason why the research on Toxin-Antitoxin (TA) loci is getting more and more emphasis. These set of genes consist of poison (Toxin) and its antidote (Antitoxin) expressing in an operon where the toxin inhibits the cellular process and antitoxin which can be a protein or non-coding RNA, rescues the toxin. Most recent progress in genomics and in silico studies have revealed new TA families, and types of TA on bacterial chromosome. However, there is almost no or very little is known about the TA in H. pylori. Therefore, this study aims to identify the TA genes in human pathogen using a comprehensive in silico approach. METHODOLOGY: Here, we have collected the genome-wide data of TA in H. pylori 26695 using TASmania, a new TA database. Further, entire TA dataset was validated with several other databases available for TA, operon analysis and experimental data available. KEY FINDINGS: The study revealed the presence of 80 putative TA genes in H. pylori and highlighted their similarity as well as uniqueness in comparison to other three known TA carrying human pathogens. SIGNIFICANCE: The present study indicates the presence of a large number of TA genes in H. pylori which make biofilm and goes into persistence. Hence, our innovative approach unlocks the prospect for characterizing these putative TA genes and their role as stress managers.


Asunto(s)
Antitoxinas/genética , Toxinas Bacterianas/genética , Regulación Bacteriana de la Expresión Génica , Genoma Bacteriano , Helicobacter pylori/genética , Operón , Sistemas Toxina-Antitoxina/genética , Genómica/métodos , Humanos
19.
Clin Epidemiol Glob Health ; 13: 100927, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34926866

RESUMEN

BACKGROUND: India has a high COVID-19 burden. The Indian government responded to the pandemic by mandating its population to adhere to certain Protective Measures (PMs). Compliance to these PMs depends on their acceptability and adaptability among the general public. AIMS: To explore the perceptions and practices of COVID-19 related PMs among the general public of North India. METHODS: Qualitative study in four administrative districts (Lucknow, Etawah, Patna and Darbhanga) of North India. Two urban and two rural districts were purposefully selected. Audio in-depth interviews (IDIs) were conducted with healthy caregivers of children (2-59 months). Data was managed using Atlast Ti and analyzed using conventional content analysis. RESULTS: From July-Sep 2020, 60 IDIs were conducted; 36.6% (22/60) were females and 26.6% (16/60) had below primary education. Respondents concurred that most people in their society flouted the recommended PMs. The reasons for poor/non-compliance with PMs were: perceived poor susceptibility to illness, perceived less severity of COVID-19 and low perceived benefits of complying with the PMs. Respondents opined that COVID-19 is less prevalent in rural areas and among the educated population. Most respondents were aware of the recommended PMs and opined that these must be followed, however subjective norms, social norms and behavioral intentions negatively impacted compliance. CONCLUSIONS: Since there was poor community perception of susceptibility to COVID-19 as well as poor perceived severity, the community did not understand the benefits of adhering to the recommended PMs. Therefore, future health communication strategies must take these into account to increase the possibility of success.

20.
J Minim Invasive Surg ; 25(4): 139-144, 2022 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-36601493

RESUMEN

Purpose: Uncertainty exists about whether early laparoscopic cholecystectomy (LC) is an appropriate surgical treatment for acute calculous cholecystitis. This study aimed to compare early vs. late LC for acute calculous cholecystitis regarding intraoperative difficulty and postoperative outcomes. Methods: This was a prospective randomized study carried out between December 2015 and June 2017; 60 patients with acute calculous cholecystitis were divided into two groups (early and delayed groups), each comprising 30 patients. Thirty patients treated with LC within 3 to 5 days of arrival at the hospital were assigned to the early group. The other 30 patients were placed in the delayed group, first treated conservatively, and followed by LC 3 to 6 weeks later. Results: The conversion rates in both groups were 6.7% and 0%, respectively (p = 0.143). The operating time was 56.67 ± 11.70 minutes in the early group and 75.67 ± 20.52 minutes in the delayed group (p = 0.001), and both groups observed equal levels of postoperative complications. Early LC patients, on the other hand, required much fewer postoperative hospital stay (3.40 ± 1.99 vs. 6.27 ± 2.90 days, p = 0.006). Conclusion: Considering shorter operative time and hospital stay without significant increase of open conversion rates, early LC might have benefits over late LC.

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