There are about 4973 clinical studies being (or have been) conducted in Mexico. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The goal of this clinical trial is to investigate the impact of repeated antioxidant supplementation on blastocyst utilization and expansion rates in embryos under different oxygen concentrations. The study aims to answer the following main questions: - Does adding antioxidants every 12 hours to embryo culture media improve usable and expanded blastocyst utilization rates on days 5 and 6? - How are the O2 concentrations related to the effect of different methods of antioxidants supplementation on blastocysts utilization and expansion rates? Participants in this study are infertile couples undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles. - Zygotes will be incubated at either 5% or 20% oxygen tension until the blastocyst stage. - Sibling zygotes will be divided into four groups: Group 1A and 1B: Antioxidants every 12 hours at either 5% or 20% O2 tension, respectively. Group 2A and 2B: Antioxidants only once at the beginning of embryo culture at either 5% or 20% O2 tension, respectively. Researchers will compare the four groups to determine if the repeated antioxidant supplementation of the culture media leads to improved blastocyst utilization and expansion rates compared to the baseline group.
This study will investigate whether changes in the gut microbiota generated after the consumption of a high protein diet in healthy subjects, modify the production of secondary bile acids. In addition, it will be seen whether a high protein intake modifies postprandial glucose response and its relationship with gut microbiota composition.
Objective: to assess the effectiveness of a multi-component physical exercise online intervention (MPE) on physical performance (PP) in community-dwelling older adults. Methods: a randomized controlled trial, including 110 older adults (68.45±5.54 years), were divided into two parallel groups: an MPE group (n = 55) and a control group (n = 55). The exercise program included endurance, strength, coordination, balance, and flexibility exercises which were carried out for 3 months. The control group received educational sessions on health prevention related to physical exercise. The main endpoint was a change in PP assessed with the short physical performance battery (SPPB). It is also evaluated other variables such as sociodemographic (sex, age, education level), health conditions (cognitive impairment, polypharmacy, comorbidity, frailty, sarcopenia, depressive and anxiety symptoms), functional dependence through scales of activities of daily living (ADL), nutrition (risk of malnutrition, weight, height, body mass index (BMI), calf and waist circumference) and lifestyles (physical activity, alcoholism, and smoking). Comparisons were made in the follow-up measurements between groups by an independent t-test and baseline and follow-up measurements in both groups by a paired t-test.
This retrospective observational study aims to determine the probability of the risk of dengue transmission through a model based on epidemiological, entomological, socioeconomic, demographic, and landscape variables in the El Vergel neighborhood in the municipality of Tapachula, Chiapas, Mexico. The main question it aims to answer is: 1. Is it possible to identify the risk determinants of dengue transmission by developing a probabilistic model based on the landscape analysis of epidemiological, entomological, sociodemographic, and landscape variables in an endemic urban area of the municipality of Tapachula, Chiapas, Mexico? Participants will be selected from a registry obtained from the Secretary of Health of cases of dengue fever, which will be contrasted with the entomological, socioeconomic, demographic, and landscape variables in the El Vergel neighborhood in Tapachula, Chiapas, Mexico. They will be not contacted or sampled for biologic testing in any shape or form, only the data already collected from the health services will be used.
This work aimed to evaluate the acute effect of a black bean protein hydrolysate (BPH) on glucose levels in adults with normal glucose tolerance (NGT) and prediabetes. Twenty peptides were identified in BPH, and a followed in silico predictive digestion showed a release of several short-chain peptides with potential hypoglycemic potential. A double-blind, placebo-controlled, randomized clinical trial was conducted on 28 adults with NGT or prediabetes. After consent, participants were randomized into two groups, placebo or the corresponding 5 g BPH treatment. An oral glucose tolerance test (OGTT) (75 g glucose) was used to measure glucose tolerance before treatment. A second OGTT was used to evaluate the acute effect of the BPH, and blood samples were collected at 0, 60, 120, and 150 min, and blood glucose levels were measured.
The appearance of facial wrinkles, lines, or folds is a natural phenomenon during aging. Different scales help classify wrinkles objectively, such as the Facial Wrinkle Scale. Others help classify patients' subjective perspectives, like the Face-Q questionnaire. The application of Botulinum Toxin is the most performed non-surgical aesthetic procedure in the world to treat facial expression lines. The present study aims to compare the efficacy of onabotulinum toxin-A (BOTOX®) and prabotulinum toxin-A (NABOTA®) to treat expression lines in the upper third of the face, based on objective and subjective follow-up, using the FWS scale and FACE-Q questionnaire, respectively.
All patients with acute lesions that attend the orthopedic and trauma center of the ABC medical center are invited to participate in the study. Those that meet the inclusion criteria and later sign an informed consent are randomized to receive 10 ml of a solution with ropivacaine at 7.5% and 2.0% intraarticular for the first 5 minutes after the end of surgery (closing of surgical wounds). Both the patient, the physician who applies it and the evaluator of outcomes remain blinded to the dose of ropivacaine the patient receives. Two hours after the end of the surgery, while the patient is in his room, the presence of pain is evaluated by a visual analog scale (VAS), while the patient is asked to flex and extend his knee. The result is quantified continuously, to later categorize the pain in none to slight pain (0-3 points) and moderate-severe pain (4-10 points). All the information is recorded on established forms in the clinical file (general data), that includes the variables of interest for the study, and is reported by the physicians after standardization of all those in charge with collecting information to comply with the conceptual and operative operationalization of the variables described in the research protocol. In addition to the evaluation of pain, the administration of opioids to patients for necessary reasons (presence of pain) by the physicians in charge is recorded. It is hoped that, in patients with knee arthroscopy for acute lesion, there is a difference in the frequency of moderate-severe pain of 30% in the post-operative (frequency of 37.5% in patients with ropivacaine at 2% and frequency of 7.5% in patients with ropivacaine at 7.5%).
The identification of mutations in cancer susceptibility genes is important as it makes it possible to recommend specific cancer treatments, implement risk reduction strategies or early detection of cancer, and identify family members at risk. The guidelines for evaluating patients who are candidates for genetic testing recommend pre-test genetic counseling. However, the limited number of specialists trained to provide genetic counseling worldwide, and particularly in developing countries such as Mexico, makes it difficult to implement such recommendations. The present proposal aims to compare, through a randomized non-inferiority study, a pre-test education strategy using a pre-recorded video against in-person counseling. This strategy could potentially increase access in places with limited resources. The general hypothesis of the research is that patients who are candidates for cancer genetic susceptibility testing who receive pre-test education via video will consent to genetic testing in the same proportion as those who receive it during an in-person visit. The specific objectives of the study include: 1) to compare the proportion of patients who are tested in both groups; 2) to assess knowledge about hereditary cancer in both groups after the intervention; 3) assess anxiety symptoms in both groups after the intervention; and 4) assess satisfaction with the information received during the intervention.Patients >18 years of age who meet the criteria for genetic testing to evaluate genetic cancer susceptibility genes and who have not previously undergone genetic testing or genetic counseling will be invited. The intervention group will receive education via pre-recorded video and the control group will receive genetic counseling during an in-person consultation.
The goal of this clinical trial is to evaluate if a customizable support material allows to improve the knowledge about the stage and subtype of the disease, as well as the indicated treatments, in comparison with a non-customizable support material among patients with breast cancer. The main question it aims to answer is: • What is the impact of delivering a customizable support material so that patients with breast cancer know and remember the stage and subtype of their disease, as well as the indicated treatments, compared to non-customizable support material? Participants in the intervention group will be provided customizable support material while those in the standard group will receive a non-customizable material.
The goal of this clinical trial is to evaluate the impact of using a whole food plant-based diet in the reduction of cardiovascular risk related to HIV in people who live with HIV infection. The main questions it aims to answer are: - Does a whole food plant-based diet, nonrestrictive in calories and low in fat, reduce the cardiovascular risk associated with HIV infection in people with HIV infection? - Does the whole food plant-based diet permit achievement goals in specific metabolic markers of cardiovascular risk (such as Cholesterol, C Reactive Protein)? Participants will follow a non-calorie restricted, low fat, whole food plant-based diet for 8 weeks Researchers will compare standard nutritional care to see if there is a difference in the main outcomes